/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "dma.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "../myCore/BSP/LED/led.h"
#include "../myCore/SYS/my_uart.h"
#include "../myCore/BSP/KEY/key.h"
#include <stdio.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
USART_Data usart_Data_handle;
char uart1_rx_buf[500];//定义接收环形缓冲区,使用静态分配内存时需要
char str[100];//定义处理数据时的缓冲区，用于存放一帧数据，即会把环形缓冲区的一帧数据拷贝到这里
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void uart1_callback(USART_Data *me){
  //不能使用阻塞函数，包括阻塞型串口发送函数
  LED_TOGGLE(2);
}
/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
  key_init();
  HAL_UART_Transmit(&huart1, (uint8_t *)"Hello, World!\r\n", 15, 1000);
  //初始化串口接收数据结构体
  USART_DataTypeInit(&usart_Data_handle, &huart1, (uint8_t *)uart1_rx_buf, sizeof(uart1_rx_buf), DMA_CIRCULAR_MODE, NULL);
  int times = 0;
  int overflow = 0;
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    int keyNum = key_scan();
    if(keyNum == KEY0_PRES){//按键0按下，发送所有接收到的数据
      HAL_UART_Transmit(&huart1,(uint8_t*)"Key1 pressed\r\n",15,1000);
      while (uartDataNotEmpty(&usart_Data_handle) == 1) {
        int len = uartGetData(&usart_Data_handle, (uint8_t *)str, 100);
        HAL_UART_Transmit(&huart1, (uint8_t *)str, len, 1000);
        HAL_UART_Transmit(&huart1, (uint8_t *)"\r\n", 2, 1000);
      }
    } else if (keyNum == KEY1_PRES) {//按键1按下，发送最早接收到的一帧数据
      HAL_UART_Transmit(&huart1,(uint8_t*)"Key2 pressed\r\n",15,1000);
      if (uartDataNotEmpty(&usart_Data_handle) == 1) {
        int len = uartGetData(&usart_Data_handle, (uint8_t *)str, 100);
        HAL_UART_Transmit(&huart1, (uint8_t *)str, len, 1000);
        HAL_UART_Transmit(&huart1, (uint8_t *)"\r\n", 2, 1000);
      } else {
        HAL_UART_Transmit(&huart1, (uint8_t *)"No data received\r\n", 19, 1000);
      }
    } else if (keyNum == KEY2_PRES) {//按键2按下，在串口数据缓冲区溢出时重启接收
      HAL_UART_Transmit(&huart1,(uint8_t*)"Key3 pressed\r\n",15,1000);
      if (overflow == 1) {
        int ret = uartDataOverflowReset(&usart_Data_handle);
        if (ret == 1) {
          overflow = 0;
          HAL_UART_Transmit(&huart1, (uint8_t *)"Overflow reset\r\n", 16, 1000);
        } else if (ret == 2) {
          overflow = 0;
          HAL_UART_Transmit(&huart1, (uint8_t *)"Error,No overflow\r\n", 19, 1000);
        } else {
          HAL_UART_Transmit(&huart1, (uint8_t *)"Overflow reset Error\r\n", 22, 1000);
        }
      }
      else {
        HAL_UART_Transmit(&huart1, (uint8_t *)"No overflow\r\n", 14, 1000);
      }
    }
    if (uartDataGetOverflowFlag(&usart_Data_handle) == 1 && overflow == 0) {
      overflow = 1;
      HAL_UART_Transmit(&huart1, (uint8_t *)"Overflow\r\n", 10, 1000);
    }

    times++;

    if (times % 5000 == 0) {
      printf("\r\n俊A_ 串口实验\r\n");
      printf("sevenfite@robotLab\r\n\r\n\r\n");
    }

    if (times % 30 == 0) LED_TOGGLE(1); /* 闪烁LED,提示系统正在运行. */

    HAL_Delay(30);  // 卡住30ms，以此体现缓冲区的作用

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
